Connecting-conductor for cables.



PATENTED MAY ze., 190s.

F. s. VIEL. CCNNBCTINC CONDUCTOR PCR CABLES.

APPLICATION FILED AUG.15,1902. BENEWED MAB. 29, 1906.

' certain'l improvements in joints or splices for UNITED, STATES 'PATENTOFFICE.

FRANoIs 4s. VIL', 'oF PITTSBURG, PENNsYLvANiA, AssIGNoR'rol-STANDARDUNDR-- Y GROUND CABLE COMPANY, oF- PITTSBURQPENNSYLvANIA,@CORPORATION -Appliation med Au'gistfis, 1902,' 'serial No. 119,194.1.'

' 5 of the Unite-d States, have invented'or .cliscovered certain newandv useful Im rovements in Connecting-Conductors' for ,ables,

of Which improvements the following is a specication-. f

The invention described'hereinfr'elates to eleutztricA cablesl carryinghigh voltage cur-- "rents: It has heretofore been the practice in'making such splices or' joints to remove j` A1 '5 the insulation fromthe sides of .theconductors tolle` connected, a suitable"distance,l andthen form an electric joint vor, union between theseconductors insuitable'manner. Insulation in, .the form of'paper, or librous tape wasthen, applied by. hand to theportions of v conductors, from which' theinsulation was removed. It is a matter of considerable.

difficulty" to determine `When` a suflicient amount ofy tape has beenapplied to renderthe joint as strong electrically as' the original`insulation. .As considerable care and labor are required in applyingth'e tape, the Workman isvery liable to shirk it 'and leave the jointlimperfect." And further lit yis practi.

cally yimpossiblefto so apply the tape' as'toforma comp-act uniformthickness of. insulation. The Vforegoing diliiculties in applying andincident tothe use of 'tapes in forming l the insulation. ofl joints areespecially premi- 3 5 nent when connecting the conductors ofdu-v .p1eX`and,triple cable, as With such cable ,the

conductorcannot be A separated to' any considerable extent and the tapelhas to' be threaded between the conductors. 40

insulating covering for the exposed ends' of vconnected conductors of -auniform; thick-- ness and electrical strength which shallbe at 4'5 leastequal to that ofthe original insulation.

' ,"The Invention is hereinafter more fully detional elevationjshfovving my` improvement 'as employed in connecting the conductors vofa triple cable, 'and Fig. 2. is a transverse section of the same onaplane indicatedby the lille n n Fig.l 1.

\\ Specication of-Letters Patent.4

Theobjecto-f the present' invention is-to-` .providedfor easy and quickformationfen coNNEcTING-,CONDUCTQR Fon eABLE's.-

Renewed umh 29, `1901s. serial N9. 2152,6"15,

` In the practice of my invention, the sheath 55 1 vand covering?, of.the cable is removed, a suflicient distance andtheinsulation 3` ofthe lconductors 4 is also removed, asiis customu ary. Sleeves `5 are then,'slipped `over one -of\the ends of theconductors and pushed backfarfenough to permit of the ends of..the conductors 4 being electricallyconnected." This connection may be formed in` any suitable-manner, asfor example, 'bym'ea'ns of a metallic sleeve 6, solderedfor sveated'ontotheends of the conductor projecting into the sleeve, as shown. vAstheinternal diameterl 'of the" sleeves 5 is made sufficiently large tothere will be considerable tspace bet fveen the sleeve the conductorWhen the sleeve is arranged over the joint, hence iii-order to holdl thesleeve steady and form an internal Support therefor; paper or-iili'nistape/x7` impregnated .With insulating Wax is Wrapped a fewv times aroundthe 'sleeve Gandthe' le'xposed 'portions 'of theconduct'or, and plastic'.insulatingmaterialapplied ,to the tapebe-` fore the Lsleev'e gvqhich ismadesu'lioiently long to Overlap the insulation` 3 Aon'bothsides of thepoint'- of union ofthe conductors," is

fslipped into position. The use ofthe tape and plastic 'insulatingmaterialv 'isfnot neces?- sary for insulating' purposes,- bt it --isplie-l ferred `to employ Vthem .both -as a centering 8,5

support o f the sleeve andalso as a filling preventing air'spacesWithinjthe sleeve-.1

After all the conductors havebeen' con-l nected and insulated,I asdescribed, the paper sleeves onthe several conductors 'areipie'ssedVt'tlget'her and al'argef a er sleeve 8, Which" was slipped over one o -te cables before any yoi? the conductorsWere united'pis slipped-'into'.position overthesleeves', as shown', and serves to Ahold allthe parts ofthe cable. ThisV 'binding sleeve not necessary but is highlyd'esirableasstrengthening the joint. -Alis customary, Va sheathing4sleeve 9\is plI ced. around the joint" and connected'to the sheath 1 ofthe.eable',-f agnl Aliquid insu latin material, refei'ably' is pouredfinto Ythis s eeve until al air is forced 4out and the* sleevecompletely -illed.

The sleeves-5in addition'to-forming Tan linsulatingcovering forthejoint, serve to hold `the several .conductors apart and-'aird 'spacesfor tlieQin'sulating. material-Which v.,pourecl intothe j'ointas'described'.` 'In other i from position, the e `for the reason that sucno,Ii-conducting" words `therigidl sleeves 5 serve as's acing pieces toprevent contactbetweenf a jacent conductors, and henceif foranyreasonthe Vsleeve did'not extend frominsulationto insulation, as forexam le, if it should slip fgciency'ofV the 1 joint would not beaffected as thesleevefwould" revent'contact between conductors and theinsulating material with which the joint 'is iilled would affordsufficient insulation I am aware that thin lightsleeves formedeinen-conducting niaterlal, such as paper `or indurated fibenhavebeen-employedior insulating the joints of conductors carrying lightcurrents for telegraphic `and telephonie purposes. `l 'lhese'sleeves areap' lied to cenductors having their insulation ormedoi" an 'aircontaining material, and are so con# i structed and arrangedaroundythejoint as to .to overcome these difficulties, the 'sleeve is lformedso that its electrical strength is at least equa-Ito that" of theinsulation on the' conductors, and is made hard and rigid, so as to`provide and maintain such position `relative to the oint that thenon-conducting filling ap lied as V`described between the' sleeve and`conductor, will have a uniform thickness. This sleeveis referably formedY of an absorbent materi as paper, and boiled in insulating materialfsoas to be thor- `45 oughly impregnated therewith and ,thereby rendered"as nearly as possible absolutelyin' combination rigid j Y I claim hereinas my invention:

. As a means for'insulating jolnts 1n' con ,ductors for hlghvoltagecurrents, a-rigidy integral sleeve of non-conducting 'materialsurrounding ductors an forming the bridge or connecnecting conductors,and having the s ace the splice between the com y ition between theinsulations on fthe .con-fl between -L the' vconductors u andv sleevevlled Witli-'noncondlucting material, substantially as set forth.

2. A'joint forcables having la plurality .ci

conductors `for high voltage currents, having in combination rigidsleeves ofnon-cond'u'ctf v lng materlaland overlapping the or1 xnalv 'l.insulation o n the connected sections o the,-

conductors, asimilar sleeve surrounding the other sleeves, asheathing-sleeve and non# conducting material'i'lling 'all the spaces`Within the sheathing sleeve, substantially as set forth. l

3; A joint for cables having a plurality of conductors for high voltagecurrents, having aper sleeves impregnated.`with non-con ucting` materialand j overlapping the original insulation on the the conductors, as1-1'n connected sections o? llarsleeve surrounding the `other, sleeves,a sheatlun sleevey and non-conducting material {illingal 'the spacesWithin the sheathing f sleeve, substantially as set forth. v

4. A joint for cables having a'plurality-of conductors 'for high voltagecurrentshaving in combination rigid sleeves oi.non-conductconductors,fa. similar sleeve surrounding the `other sleevesasheathing sleeve and nonconducting finaterial filling all the spaceswithinthe sheathing sleeve, substantially `as set forth.

In testimony whereof,- rmy hand. t

FRANois s. viaria Witnesses: I l i' N lng material Surrounding the'splines. in the l have` hereunto set'

